package com.ctgu.juc_project;

import com.ctgu.juc_project.example.threadLocal.RequestHolder;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

@Slf4j
public class HttpFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
                         FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
//        Object user = request.getSession().getAttribute("user");
        long threadId = Thread.currentThread().getId();
        String servletPath = request.getServletPath();
        log.info("do filter, {}, {}", threadId, servletPath);
        RequestHolder.add(threadId);
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {

    }
}
